IRWIN VISE-GRIP VSG10231 #1 High Speed Steel Fractional Self-Starting Drill Bit, 1/8"-1/2"

• Single-flute cutting edge for greater control through steps
• Hex shank prevents slipping in drill chuck
• New SpeedPoint tip penetrates faster than previous Unibits and prevents walking
• Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic, and laminates